Tag
eigenvalue

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T397: Spectral radii of connected graphs (996 real numbers)
T400: Kirchhoff indices of connected graphs (996 rational numbers)
T237: Characteristic polynomials of connected graphs (996 integral polynomials)
T329: Eigenvalues of the classical symmetric test matrices (847 real numbers)
T325: Normalised Hecke eigenvalues of level one cusp forms (432 real numbers)
T406: Rayleigh-Schrödinger perturbation coefficients of the quartic anharmonic oscillator (303 rational numbers)
T330: Characteristic polynomials of the classical test matrices (220 rational polynomials)
T436: Characteristic values $a_n(q)$ of the Mathieu equation (165 real numbers)
T404: Eigenvalues of the quartic anharmonic oscillator $-y''+(x^2+\lambda x^4)y$ (165 real numbers)
T84: Spectral parameter of Maass forms of level 1 (69 real numbers)
T411: Eigenvalues of the quartic double well $-y''+(x^2-a^2)^2y$ (60 real numbers)
T390: Dirichlet eigenvalues of the classical planar domains (17 real numbers)
T408: Eigenvalues of the pure quartic, sextic, octic and decic oscillators $-y''+x^{2m}y$ (12 real numbers)
T407: Eigenvalues of the imaginary cubic oscillator $-y''+ix^3y$ (5 real numbers)